The S9014 by Youtai is an electronic part consisting of an NPN/PNP transistor housed in a SOT-23-3 RoHS compliant package. The NPN type has four legs--collector, base, and two emitters; the PNP type appears as the inverse, with the collector and emitters swapped. It features high current gain (hFE > 100) and withstands up to a maximum of 100 volts, making it capable of handling a wide range of applications. The small size of the SOT-23-3 RoHS package allows it to fit in tight spaces and makes it ideal for prototyping with breadboards. The S9014 is a versatile electronic part that can be used in a wide range of projects.